If you haven't already read, I think it would be best if you read the "New To Eczema? page as well.
Each page contains different information that may be helpful for you to know in the future.

Eczema's Most Annoying Rule: Don't Scratch

Lets start with how to maintain your eczema so it doesn't get worse than current circumstances.
The most annoying thing you will hear from now on, (I can vouch for this) is people telling you not to scratch.  Scratching leads to breaking of the skin, which then will follow by bleeding and then crusting and weeping.  Scratching also leaves you with open wounds that are vulnerable to get infected.  It is said that people with eczema are more likely to catch diseases than an average person.  There are eczema-causing bacteria inside your body that can be killed by antibiotics or even just lowering your sugar intake.  

Corticosteroids And Topicals For Eczema

You can go to a pharmacy and try to find over-the-counter corticosteroids to help reduce your inflammation but you must caution anything dealing with steroids.  They lead to many different side effects that you can read about on Help Your Eczema Without Steroid Creams and on Different Types Of Medication For Eczema.  Both posts list different information that will be useful to you when deciding about corticosteroids.  You should definitely see a doctor and get some professional intake.

There are two recommended topical medications for eczema that are US Food & Drug Administration Approved.  The two are called, tacrolimus and pimecrolimus.  They belong to a class called calcineurin inhibitors and work by modulating the immune system response.  The plus about these two topical creams are that they have no side effects, which is a better alternative treatment for eczema than a steroid cream.  Whether you use them for a couple days, weeks, months, years, you are still free of side effects.  YAY!   You can read more in depth about these two topicals on another post.

Eczema Home Treatment Tips

Eczema can partially be prevented by abiding by some home environment changes.

1. Wear breathable clothing (cotton! you must always remember cotton!)
2. Use mild or fragrance free :
   - soaps
   - shampoos
   - conditioners
   - lotions
   - shaving cream
   - after shave
3. Dust more often. 
   - clean your room and eliminate dust mites (parents should do this regularly for their children)
4. Avoid Temperature Changes. 
   - Don't sweat
   - But also, Don't over use air conditioning and dry out your skin more.
   - Remain in between as much as you are able to control.

Eczema can happen at any age and time.  You are born with it and it may come out as a baby, child, 20's 30's, etc.  And it sucks no matter what.  But if we all stick together and come up with the best natural cures for eczema, maybe it wont be so bad anymore.  Thanks for reading! Good Luck!